/*-
 * Copyright (c) 1992 Henry Spencer.
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Henry Spencer of the University of Toronto.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)regex.h     8.2 (Berkeley) 1/3/94
 */

#ifndef _REGEX_H_
#define _REGEX_H_

#include <sys/types.h>

/* types */
typedef off_t regoff_t;

typedef struct {
        int re_magic;
        size_t re_nsub;         /* number of parenthesized subexpressions */
        const char *re_endp;    /* end pointer for REG_PEND */
        struct re_guts *re_g;   /* none of your business :-) */
} regex_t;

typedef struct {
        regoff_t rm_so;         /* start of match */
        regoff_t rm_eo;         /* end of match */
} regmatch_t;

/* regcomp() flags */
#define REG_BASIC       0000
#define REG_EXTENDED    0001
#define REG_ICASE       0002
#define REG_NOSUB       0004
#define REG_NEWLINE     0010
#define REG_NOSPEC      0020
#define REG_PEND        0040
#define REG_DUMP        0200

/* regerror() flags */
#define REG_NOMATCH      1
#define REG_BADPAT       2
#define REG_ECOLLATE     3
#define REG_ECTYPE       4
#define REG_EESCAPE      5
#define REG_ESUBREG      6
#define REG_EBRACK       7
#define REG_EPAREN       8
#define REG_EBRACE       9
#define REG_BADBR       10
#define REG_ERANGE      11
#define REG_ESPACE      12
#define REG_BADRPT      13
#define REG_EMPTY       14
#define REG_ASSERT      15
#define REG_INVARG      16
#define REG_ATOI        255     /* convert name to number (!) */
#define REG_ITOA        0400    /* convert number to name (!) */

/* regexec() flags */
#define REG_NOTBOL      00001
#define REG_NOTEOL      00002
#define REG_STARTEND    00004
#define REG_TRACE       00400   /* tracing of execution */
#define REG_LARGE       01000   /* force large representation */
#define REG_BACKR       02000   /* force use of backref code */

int     pg95_regcomp(regex_t *, const char *, int);
size_t  pg95_regerror(int, const regex_t *, char *, size_t);
int     pg95_regexec (const regex_t *,
                      const char *, size_t, regmatch_t [], int);
void    pg95_regfree (regex_t *);

#endif /* !_REGEX_H_ */
